Non-rotative pumping-engine.



No. 689,775. Patented D'ec. 2,4, i901.

L. DAUBIA.

NON-BOTATIVE PUMPING ENGINE.

m'ppnminn mea my 21, lass.) uw' Modem" 2 shuts-sum1.'

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No. 6893755 Patented nec. 24;.i9ol. 'y

L. uAumA.

NON-RUTATIVE PUMPING ENGINE.v

(Application led July 21, 1899.)

(Nov Model.) 2 Sheets-Sheet 2.

set forth in my Letters Patent No. 493,153,

the compensator that said dow-pipe conunion.

LUIGI DAURIA, OF PHILADELPHIA, PENNSYLVANIA.

ANON-ROTATIVE PUIVIPING-ENGINE.

SPECIFGATION forming part of Letters Patent N o. 68.9,*775, dated December 24, 1901.

Application filed July 2l, 1899.

To a/ZZ whom ibm/ty con/cern. Y v

Beit known that ,.I, LUIGI DAURIA, formerly a subject of the King of Italy, buthaving declared myintention to become a citizen of theUnited States,residing in Philadelphia, Pennsylvania, have invented certain Improvements in Non-Rotative Pumping-Engines, of which the following is aspecification. My invention consists of certain improvements in the non-rotative pumping-engine dated March 7, 1893, the object of my present inventionbeing to render the structure more compact than before and to dispense with the necessity of any special foundation for the engine, an object which I attain by so disposing-the liquid-flow pipe forming part of stitutes the foundation or support for the cylinder structure of the engine.V

' In the accompanying drawings, Figure lis a side view of a duplex non-rotative compound steam pumping-engine of the character to which my invention appertains and illustrating the novel disposition of the compensator dow-pipe wherebythe same is rendered available as a foundation or support for the engine. Fig. 2' is a transverse section on the line x 0c, Fig. 1. Figs. 3, 4, and 5 are enlarged sections of the base or foundation structure,taken,respectively,on the lines a d, b b, and c c, Fig. 1. Fig. 6 is a side elevation of a vertical .duplex non-rotative compound steam pumping-engine embodying my invention, and Fig. 7 is an end viewof the same.

, In non-rotative pumping-engines of the class to which my invention relates there is employed in connection with each pump-cylinder and its steam cylinder or cylinders a` compensator having a cylinder and piston whereby a mass of liquid is set in reciprocation for the purpose of compensating for the varying pressure upon the power piston or pistons due to the use of steam expansibly, as is set forth in my before-mentioned Letters Patent No. 493,153 and in Amy Letters -Patent No. 446,435, dated February 17, 1891. This reciprocating mass ofliquid is contained mainly in a flow-pipe extending in the form of a loop from one end of the compensating serial No. 724,665. (No man.)

engine as previously constructed. Thus the depending loop formed by the dow-pipe shown in my previous patent, No. 493,153, required a special pit or chamber for its reception and materially increased the space occupied by the engine. By my present invention, however, I am not only able to overcome this objecton, but can also dispense with any special foundation or support for the cylinder structure of the engine, the flow-pipe serving this additional purpose. Y

In Fig. 1 of the drawings, 1 represents a high-pressure cylinder, and 2 a low-pressure cylinder, of a direct-acting non-rotative compound steam pumping-engine, 3 being the pumping-cylinder and 4 the compensating cylinder, the latter being interposed between the pump-cylinder and the low-pressure steam-cylinder. With the opposite end portions of the compensating cylinder 4 communicate theends of the looped dow-pipe 5; but this loop instead of extending directly downward from the cylinder, as in my former patent, No. 493,153, Vis longitudinally flattened or expanded, so that the main dimensionsvof the loop are longitudinal, the terminations of the loop being bent upward Jforcennection to the branches on the compensating cylinder 4. y

Y The engine shown in Figs. 1 and 2 isa dupleX- engine having the parts arranged in pairs, as shown in Fig. 2, and each ofthe looped flow-pipes 5 consists of a casting having a central web 6 interposed Abetween the upper and lower runs of the loop'and between the vertical branches thereof, these webs being suitably stiffened by side ribs 7, and the webs of the two castings being rigidly bolted together at appropriate intervals by means of bolts 8, passing through tubular sleeves 9, interposed between the webs and iirmlyseated at each end upon a thickened portion of each web, as shown in Figs. 3 and 5. Cast with each flow-pipe structure are pedestals 10, which are suitably faced on the top for the reception of the correspondingly-faced lower portions of the various cylinder structures 1,

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I2, and 3, and the upwardly-bent terminations ot' the flow-pipe 5 are provided with flanges 1l and are similarly faced for the reception of the faced lower ends of the branches on the compensating cylinder 4, so that when the cylinder structure is properly adjusted to the bed or foundation formed by the flow-pipe and the two are properly secured together perfect alinement of the various cylinders is insured, this result being attained in a simple, cheap` and expeditious manner. Certain of the pedestals IO extend downward below the [low-pipe structure, so as to form feet 12 for the support of the same. By extending the flow-pipe structure longitudinally beneath the cylinder structure of the engine I am enabled to avail myself of the weight of metal in said How-pipe structure and of the weight of the mass of liquid contained therein to provide a firm and secure foundation or support for said cylinder structure, and I have found in practice that the support thus furnished is so stable that the engine can be placed upon any support capable of sustaining its weight and can be operated without 'i even bolting or otherwise securing it to such support.

In Figs. G and Z I have illustrated my invention as applied to a duplex vertical directacting compound steam pumping-engine, of which Ia and 2a represen t, respectively, high and low pressure steam-cylinders and 4 compensating cylinders, the pump-cylinders being below the latter and not being illustrated in the drawings. In this case each How-pipe structure is composed of four sectionsnamely, the curved portions 5a, connected to and communicating with the compensating cylinder 4, the forked sections 5b and 5c, communicating, respectively7 with the two curved sections 5a of the cylinder, and the base-section 5d, containing the two transverselycurved pipes 5f, which form connections between the divided ends of the forked sections 5b and 5c of the structure. Both the upper and lower ends of the structures 5b and 5c are provided with flanges 1l and are faced for being fitted to faced seats on the cylinder structure 4 and base structure 5d, respectively, so that the proper setting up of the engine is facilitated. By forming the flowpipe structure in sections casting of the same is facilitated and ready access to any and all parts of the same is permitted, and like results are attained in the flow-pipe structure shown in Figs. l and 2 by providing the end portions of the same with detachable caps I3,

in which the looped ends of said flow-pipe structure are partially formed.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. A direct-acting pumping-engine, having a compensator with ow-pipe for containing a mass of liquid, said flow-pipe being disposed beneath the cylinder structure of the engine and serving as 'a support or foundation therefor, substantially as specified.

2. A direct-acting pumping-engine having a compensator with flow-pipe for containing a mass of liquid, said flow-pipe being made in the form of a loop with interposed stiiening and connecting web, and disposed so as to form a foundation or support for the cylinder structure of the engine.

3. A direct-acting pumping'engine, having a horizontal cylinder structure, a compensator and a flow-pipe containing a mass of liquid, said flow-pipe extending horizontally beneath the cylinder structure of the engine so as to serve as a support or foundation therefor, substantially as specified.

4. A duplex direct-acting pumping-engine having a compensator with two flow-pipes, each containing a mass of liquid, said flowpipes being disposed horizontally beneath the cylinder structure of the engine so as to form a foundation or support therefor, and lateral braces or connections between said How-pipes, substantially as specified.

5. A direct-acting pumping-engine, having a compensator with flow-pipe containing a mass of liquid, said flowpipe being disposed horizontally beneath the cylinder structure of the engine, so as to form a foundation or support for said structure, and having pedestals upon which the said structure rests, substantially as described.

6. A direct-acting pumping-engine having a compensator with flow-pipes containing a mass of liquid, said flow-pipe structures being disposed side by side and constituting the foundation or support for the cylinder structure of the engine, transverse bolts whereby said flow-pipe structures are connected together, and sleeves or filling-pieces interposed between said flow-pipe structures.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. i

LUIGI DAURIA. lVitnesses:

F. E. BEcHToLD, Jos. II. KLEIN.

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